Page 478 of 546

5. Place the shift lever momentarily into each gear posi-tion (allowing time for the transmission to fully en-
gage in each position), ending with the transmission in
PARK.
6. Wipe the area around the dipstick clean to prevent dirt from entering the transmission.
7. Remove the dipstick, wipe it clean and reinsert it until seated.
8. Remove the dipstick again and note the fluid level on both sides. The fluid level reading is only valid if there
is a solid coating of oil on both sides of the dipstick.
Note that the holes in the dipstick will be full of fluid
if the actual level is at or above the hole. The fluid level
should be between the “HOT” (upper) reference holes
on the dipstick at normal operating temperature. If the
fluid level is low, add fluid through the dipstick tube
to bring it to the proper level. Do not overfill.UseONLY the recommended fluid (see
Fluids, Lubri-
cants, and Genuine Parts for fluid specifications).
After adding any quantity of oil through the dipstick
tube, wait a minimum of two minutes for the oil to
fully drain into the transmission before rechecking the
fluid level.
NOTE: If it is necessary to check the transmission below
the operating temperature, the fluid level should be
between the two “COLD” (lower) holes on the dipstick
with the fluid at 60-70°F / 16-21°C for 66RFE transmis-
sion, or 68-86°F / 20-30°C for AS66RC transmission. Only
use the COLD region of the dipstick as a rough reference
when setting the fluid level after a transmission service
or fluid change. Re-check the fluid level, and adjust as
required, once the transmission reaches normal operating
temperature.
476 MAINTAINING YOUR VEHICLE
Page 507 of 546
ComponentFluid, Lubricant, or Genuine Part
Engine Oil – 6.4L Engine For best performance and maximum protection under all types
of operating conditions, the manufacturer only recommends full
synthetic engine oils that meet the American Petroleum Institute
(API) categories of SN. The manufacturer recommends the use of
Pennzoil Ultra™ 0W-40 or equivalent MOPAR® engine oil meet-
ing the requirements of Chrysler Material Standard MS-12633 for
use in all operating temperatures.
Engine Oil Filter – 5.7L Engine We recommend you use MOPAR® Engine Oil Filters.
Engine Oil Filter – 6.4L Engine We recommend you use MOPAR® Engine Oil Filters.
Spark Plugs – 5.7L Engine We recommend you use MOPAR® Spark Plugs (Gap 0.043 in
[1.1 mm]).
Spark Plugs – 6.4L Engine We recommend you use MOPAR® Spark Plugs (Gap 0.043 in
[1.1 mm]).
Fuel Selection – 5.7L Engine 87 Octane Acceptable - 89 Octane Recommended.
Fuel Selection – 6.4L Engine 87 Octane.
7
MAINTAINING YOUR VEHICLE 505
Page 510 of 546

MAINTENANCE SCHEDULE
Your vehicle is equipped with an automatic oil change
indicator system. The oil change indicator system will
remind you that it is time to take your vehicle in for
scheduled maintenance.
Based on engine operation conditions, the oil change
indicator message will illuminate. This means that ser-
vice is required for your vehicle. Operating conditions
such as frequent short-trips, trailer tow, extremely hot or
cold ambient temperatures, and E85 fuel usage will
influence when the “Oil Change Required” message is
displayed. Severe Operating Conditions can cause the
change oil message to illuminate as early as 3,500 miles
(5,600 km) since last reset. Have your vehicle serviced as
soon as possible, within the next 500 miles (805 km).
Your authorized dealer will reset the oil change indicator
message after completing the scheduled oil change. If a
scheduled oil change is performed by someone otherthan your authorized dealer, the message can be reset by
referring to the steps described under “Electronic Vehicle
Information Center (EVIC)” in “Understanding Your
Instrument Panel” for further information.
NOTE:
•
Gasoline Engines
• Under no circumstances should oil change intervals
exceed 8,000 miles (13,000 km) or twelve months,
whichever comes first.
• Severe Duty
• Change Engine Oil at 4000 miles (6,500 km) if the
vehicle is operated in a dusty and off road environ-
ment. This type of vehicle use is considered Severe
Duty
Once A Month Or Before A Long Trip:
• Check engine oil level
8
M
A I
N T
E
N
A
N
C E
S
C
H E
D
U L
E
S508 MAINTENANCE SCHEDULES